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High Power Optical Isolators (34e)

Award Information
Agency: Department of Energy
Branch: N/A
Contract: DE-SC0021678
Agency Tracking Number: 0000258918
Amount: $199,936.00
Phase: Phase I
Program: SBIR
Solicitation Topic Code: 34e
Solicitation Number: N/A
Solicitation Year: 2021
Award Year: 2021
Award Start Date (Proposal Award Date): 2021-06-28
Award End Date (Contract End Date): 2022-03-27
Small Business Information
135 South Road
Bedford, MA 01730-2307
United States
DUNS: 061931676
HUBZone Owned: No
Woman Owned: No
Socially and Economically Disadvantaged: No
Principal Investigator
 Kevin Wall
 (781) 275-9535
Business Contact
 Antonio Rodrigues
Phone: (978) 738-8110
Research Institution

Optical isolators provide protection of expensive/complex lasers systems from damage due to back reflections into the laser. As lasers of ever higher powers are being deployed in applications such as laser processing, there is a need to scale the power handling of optical isolators as well. The standard geometry that is used for optical isolators consists of rods that are cooled at their cylindrical surfaces. This leads to the formation of a thermal lens and stress-induced birefringence in the media that limits the power handling of the isolator. We will use a different geometry with aggressive cooling to mitigate thermal effects. In this SBIR program, a kW-level optical isolator will be designed a prototyped suitable for an ultrafast laser system. We will also provide a path to a 100-kW optical isolator. The optical isolator that we will develop will enable higher performance in the laser processing field. Our optical isolator will provide protection again laser instabilities yielding poor machining results and laser damage eliminating the cost of replacing the laser and down time on the manufacturing floor.

* Information listed above is at the time of submission. *

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